The present application provides a heterocyclic compound, and an organic light emitting device containing the heterocyclic compound in an organic material layer.

The present specification provides a heterocyclic compound represented by Chemical Formula 1, an organic light emitting device comprising the same, a composition for an organic material layer of an organic light emitting device, and a method for manufacturing an organic light emitting device.

The present invention relates to the field of display technologies, and particularly to a fused polycyclic compound, a preparation method and use thereof. The fused polycyclic compound provided in the present invention has a structure of General Formula IV. The structure of the compound has ambipolarity, and the HOMO level and the LUMO level of the host material are respectively located on different electron donating group and electron withdrawing group, such that the transport of charges and holes in the host material becomes more balanced, thereby expanding the area where holes and electrons are recombined in the light emitting layer, reducing the exciton concentration, preventing the triplet-triplet annihilation of the device, and improving the efficiency of the device.

A compound of Formula I ##STR00001## wherein at least one of R.sup.1 or R.sup.2 includes a polycyclic group selected from the group consisting of Formula A, Formula B, and Formula C: ##STR00002##
wherein X.sup.1, X.sup.2, X.sup.3, and X.sup.4 are independently CR.sup.A or N; X.sup.5, X.sup.6, X.sup.7, and X.sup.8 are independently CR.sup.B or N; X.sup.9, X.sup.10, X.sup.11, and X.sup.12 are independently CR.sup.C or N; X.sup.13, X.sup.14, X.sup.15, and X.sup.16 are independently CR.sup.D or N; X.sup.17, X.sup.18, X.sup.19, and X.sup.20 are independently CR.sup.E or N; X.sup.21, X.sup.22, X.sup.23, and X.sup.24 are independently CR.sup.F or N; X.sup.25, X.sup.26, X.sup.27, and X.sup.28 are independently CR.sup.G or N; X.sup.29, X.sup.30, X.sup.31, and X.sup.32 are independently CR.sup.H or N; Y is selected from the group consisting of O, S, NR, and CRR′; the maximum number of N atoms that can connect to each other within each ring is two; with the proviso that R.sup.1 does not connect to ring B, and R.sup.2 does not connect to ring A, and wherein at least one of R.sup.C and R.sup.D of Formula A is a direct bond or an organic linker, one of R.sup.E and R.sup.F of Formula B is a direct bond or an organic linker, or one of R.sup.G, R.sup.H, and R.sup.N of Formula C is a direct bond or an organic linker.

Provided are a heterocyclic compound represented by Formula 1, an organic light-emitting device including the same, and an electronic apparatus including the organic light-emitting device.

##STR00001##

The detailed description of Formula 1 is the same as described in the present specification.

A compound including a bidentate ligand L.sub.A comprising a structure of Formula I,

##STR00001##

is disclosed. In Formula I, ring A′ is a 7-, 8-, or 9-membered ring structure; X is of NR.sup.2, O, CR, CRR′, S, or SiRR′; each of R.sup.A′, R.sup.1, and R.sup.2 is independently hydrogen or a substituent; R.sup.1′ is independently absent or a hydrogen or a substituent; any two adjacent R.sup.A′, R.sup.1, R.sup.1′, and R.sup.2 can be joined or fused to form a ring; the ligand L.sub.A is coordinated to a metal, which is selected from Os, Ir, Pd, Pt, Cu, Ag, or Au; and (1) at least one of R.sup.1 and R.sup.2 is coordinated to the metal M, or (2) at least one R.sup.A′ comprises a 5- or 6-membered carbocyclic or heterocyclic ring that is not directly fused to Ring A′ and is coordinated to the metal M, or both (1) and (2) are true. Formulations, devices, and consumer products including the compound are also disclosed.

The present disclosure relates to a plurality of host materials comprising at least one first host compound represented by formula 1 and at least one second host compound represented by formula 2, and an organic electroluminescent device comprising the same. By comprising a specific combination of compounds according to the present disclosure as a host material, an organic electroluminescent device having significantly improved lifespan characteristics can be provided.

Provided are compounds capable of functioning as an emitter in an organic light emitting device at room temperature, and the compounds are at least 40% deuterated. Also provided are their uses in OLED related electronic devices.

A light emitting device includes a first electrode, a hole transport region disposed on the first electrode, an emission layer disposed on the hole transport region, an electron transport region disposed on the emission layer, and a second electrode disposed on the electron transport region. The emission layer includes a fused polycyclic compound represented by Formula 1.

##STR00001##

An organometallic compound, represented by Formula 1:

M.sub.1(Ln.sub.1).sub.n1(Ln.sub.2).sub.n2  Formula 1

wherein, in Formula 1, M.sub.1 is a transition metal, Ln.sub.1 is a ligand represented by Formula 1A, Ln.sub.2 is a ligand represented by Formula 1B, n1 is 1 or 2, and n2 is 1 or 2:

##STR00001##

wherein, in Formulae 1A, 1B, CY.sub.1, CY.sub.2, CY.sub.4, X.sub.1, X.sub.2, Y.sub.1, R.sub.1, R.sub.2, R.sub.10, R.sub.20, R.sub.40, R.sub.31, R.sub.32, R.sub.33, R.sub.34, R.sub.40, b10, b20, and b40 are as provided herein, and wherein * and * each indicate a binding site to M.sub.1.